Machine for marking bands



v H. .G. BAKER MACHINE FOR MARKING BANDS Filed. Dec. 1922 2 Sheets-Sheet l Jan, 13, 1925.

' H. G. BAKER MACHINE FOR MARKING BANDS 2 Sheet-Sheet- 2 Filed Dec. 11

|| 1 l l I Hllllllll ll-llll Z 0 Z J Patented Jan. '13, l 925.

HARRY G. BAKER, OF WORCESTER, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO GEORGE CROMTPTON AND ONE-HALF TO WILLIAM B. SCO-FIELD', BOTH OF WORCES- TER, MASSACHUSETTS.

MACHINE FOR MARKING BANDS.

Application filed December 11, 1922. Serial No. 606,337.

To all whom it may concern:

Be it known that I, HARRY G. BAKER, a citizen of the United States, residing at Worcester, in the county of lVorcester and Commonwealth of Massachusetts, have invented anew and useful Improvement in Machines for Marking Bands, of which the following, together with the accompanying drawings, is a specification. 7

My invention relates to a machine for marking driving bands that are to be applied to spindles, such as are employed on spinning frames and similar machines, in which it is desirable to have all of the driving bands operate with the same degree of tightness in order to insure uniform operation of the machine.

In my copending application, Serial No. 536,228, filed February 13, 1922, there is shown and described an improved method of applying driving bands to spindles, in which, each driving band is provided with marks prior to its application to a spindle, the distance between the marks indicating the proper length of the driving band when applied to the spindle. It is of the utmost importance that the distance between the marks on a number of given bands be the same in all cases, in order that the bands have the same tension when applied to the spindles, otherwise the machine would not operate properly. It has been found that when the bands are marked by hand, it is almost impossible to find operators who are able to place marks on different bands exactly the same distance apart, due to the fact that different operators, and very often the same operator, are liable to stretch the bands non-uniformly when applying the marks.

The object of the present invention is to provide a machine for automatically marking driving bands in such a manner that each individual band is subjected to the same amount of tension as every other band, when applying the marksthereto, so that all bands marked by my improved machine will have the marks a uniform distance apart. The above and other advantageous features of my invention will hereinafter more fully appear, reference being had to the accompanying drawings in which,

Fig. 1 is a plan vieW of it machine embodying my in enti n.

Fig. 6 is a View in front elevation of the holder shown in Fig. 5.

Fig. 7 is a view showing the parts of the combined band stretcher and holder on an enlarged scale.

Fig. 8 is a view showing a modified form of band holder.

Like reference characters refer to like parts in the difierent figures.

Referring first to Figs. 1 and 2, the machine generally comprises a table 1 supported on suitable uprights 1 and provided at one end with a plate 2 having a slot 2 within which is rotatably mounted a screw shaft 3. A band holder and marker 4; is mounted on the plate 2, and as best shown in Figs. 5 and 6, consists of a base 5 provided with an upwardly extending portion 6 having spaced arms 7 overhanging the base 5. A clamping plate 8, provided with guide pins 8*, slidable in the arms 7, is adapted to be moved with respect to the base 5 by means of a finger 9, 'pivotally supported between the arms 7 on a pin 9 The finger 9 is provided with an operating portion 10, eccentric about the pin 9, and a lug 11, projecting upwardly from the plate 8, is received in a recess 10 provided in the eccentric portion 10, whereby the plate 8 is adapted to be raised or lowered as the finger 9 is turned on its pivot. A marker 12, preferably in the form of a wick of suitable absorbent material, is carried by the plate 8, and the base 5 is provided with an index mark 13 exactly in line with the marker 12. The 01)- posed surfaces of the plate 8 and of the base 5 are provided with serrations, as indicated at 14, so that a band placed on the base 5 will be firmly held when the plate 8 is moved to its lower position by the finger 9, as will be hereinafter referred to.

The base 5 is further provided with a downwardly extending lug 5 through which extends the threaded shaft 8, so that turning of the shaft 3 will cause the holder and a belt or chain running over a gear 17 mounted on shaft 16. As best shown in Figs. 3 and 4, the gear 17 has mounted thereon a crank pin 18 upon which is mounted a number of pulleys 19, 20 and 21. The pulley 20 is embraced by a frame 22 having a slot 23, within which the pulley 20 is adapted to slide back and forth as the shaft 16 rotates, thereby imparting a vertical reciprocatory movement to the frame 22. The frame 22 is provided with an upwardly extending portion 22, upon which an arm 24 is supported, so that it normally extends at right angles to the frame 22. The arm 24 is connected to the portion 22 by a pin 25, and a spring 26 tends to hold it against pivotal movement about the pin. The arm 24 is provided at its end with a downwardly extending holder 27 carrying a band marker 28. The marker 28 may be ofany desired form and is shown herein as consisting of an inked wick extending upwardly into the holder 27 which carries a thumb screw 29, by means of which the wick may be fed and adjusted in a well known manner.

The pulley 19 is engaged by an arm 30 pivotally supported at one end, on one of the legs 1, by a pin 31, and provided at its other end with an adjustable weight 32. A flexible cable 33 is attached to the arm 30 near the weight 32 and extends upwardly over a pulley 34 into a slot 35 provided in the table 1. A band stretching device 36 is adapted to coact with the marker 28 and, as shown in Fig. 7, consists of a base 37 slidable in the slot 35, upon which is pivotally mounted a toothed stretching pawl 38 on a pin 38. One end of the base 37 is provided with pulley 39, over which the cable 33 passes and is connected to the pawl 38. The other end of base 37 is attached to a cable 40 extending downwardly over a pulley 41, at the end of which is supported a weight 42. The base 37 is provided with an upwardly extending projection 43 opposite to the toothed portion 44 of the pawl 38. The pulley 21 of the pin 18 is engaged on its under side by an arm 45 pivoted at 46, and provided at its free end with a weight 47. The pressure exerted on the pin 18 by the arm 45, serves to counter balance the pressure exerted by the pin 18 on th arm 30 as the shaft 16 rotates.

' From the foregoingdescription, it is apparent that as the shaft 16 rotates, the

holder 27 carrying the marker 28, will be moved upand down a substantially vertical line, while the arm 30 will have an oscillatory movement imparted thereto about its 1 pin 31. Downward movement of the arm 30 will cause the oablea33 to turn the pawl 38 on its pivot pin 38 simultaneously with the movement of the marker 28. It is obvi ous that with the parts in the position shown in Fig. 2, that is, with the crank pin 18 at the upper end of its throw, the marker 28 will be at the upper limit of its travel away from the table 1, while a'zpin 48 on the stretching pawl 38 is held against a stop 49 by the weight 42, the stop 49 being attaehed to the table and therefore fixed with respect to the table, whereas the base or slide 37 is adapted to slide longitudinally of the table and thereforein this position of parts, the pawl 38 is turned into the dotted line position shown in Fig. 7 and: the

machine is ready for operation. 7

lVhen it is desired to marka. number of bands, the holder 4 is first set with; the index mark 13 on the base 5 coinciding with the scale marking S, which corresponds to the length which it is desired to have between marks on a band. The finger 9 being in" the position shown in Fig. 5, the band 50 is placed between the plate 8 and the base 5..

The finger 9 is then depressed, thereby Y clamplng the hand between the serrations, V

and at the same time making a mark thereon coinciding with the index mark 13. The free end of the band 50 isthen passed between the stretching pawl 38 and the projection 43', and the motor 15 is set in operation. Assumingthat the parts occupy the position shown in Fig. 2, as the shaft 16 starts to rotate, it willbe seen that the holder 27 with the marker28 will be moved.

downwardly toward the band, and at the same time, the descending arm 30 will turn the pawl 38 in a clockwise direction about its pivot pin 38 As the pawl 38 is thus turned, the teeth 44 engagethe band 50" and hold it firmly against the projection 43, the marked end of the band then be ing held between the plate 8 and the base 5.

As the crank pin 18 reaches the lower end of its throw, the band 50 is fully stretched by the movement of the base 37, and at the same time, the wick 28 engages the band 50 and makes amark thereon, the

tinues to operate, bands will be stretched, marked and released by each rotation of the shaft 16.

In Fig. 8, I have shown a modified form of holding device which is adapted to be substituted for the marker 4; when it is desired to make a mark on a band with ref erence to a fixed point on the band, such as a knot. The modified holder consists of a base 51 having an upwardly extending arm 52, upon which is pivotally mounted a holding pawl 58. The pawl 53 is forced in the direction of the base 51 by a spring 5%, and the base 51 is provided with serrations 55 to cooperate with the pawl 53. The base 51 is provided with a lug 56, through which extends the shaft 3, whereby the base 51 may be moved on the plate 2 to bring the toe of the pawl 53 into register with any desired scale marking S.

hen using the holding device shown in Fig. 8, the bands are each previously provided with a knot 57, so that when a band is slipped between the pawl 58 and the base 51, and is pulled, the toe of the pawl 53 will be engaged by the knot 57 and cause the latter to hold the band firmly against the serrations 55. The other end of the band is then placed in the stretching device, as previously described, and a mark is made thereon at a predetermined distance from the knot 57.

From the foregoing it is apparent that by my invention I have provided an improved machine that is adapted to accurately mark or spot bands in a uniform manner, owing to the fact that before marking, each band is subjected to the same amount of tension.

I claim,

1. In a machine of the class described, a device for holding a band, near one end, means engaging said band substantially at its other end for stretching said band with a given force, and means for marking said stretched band at a predetermined distance from the said hand holding device.

2. In a machine of the class described, a device for holding a band, near one end, means engaging said band substantially at its other end for stretching said band with a given force, and means for marking said stretched band at a predetermined distance from the said band holding device after said band has been stretched.

3. In a machine of the class described, means for holding a band at a fixed point, means for stretching said band away from said fixed point, and means for automatically marking said band at a predetermined distance from the fixed point upon the completion of the stretching.

4. In a machine of the class described, means for holding a band at a fixed point, means for stretching the band away from the fixodpoint, and means for placing a mark on the stretched band at a predetermined distance from the point at which it is held.

5. In a machine of the class described, means for holding a band and placing a mark thereon at a fixed point, and means for stretching the band away from said fixed point and placing another mark thereon at a predetermined distance from the first mark.

6. In a machine of the class described, a device for holding and placing a mark on a band at a fixed point, a device for stretching the band away from said fixed point, and means operating in timed rela tion with said band stretching device for placing another mark thereon at a predetermined distance from the first mark.

7. In a machine of the class described, a table having a marker movable thereon, a band holding device, a device for stretching a band away from said device, and means for moving said marker to operative .position after the stretching of said band.

8. In a machine of the class described, a table having a marker movable thereon, a band holding device adjustable on said table with respect to said marker, a band stretching device and means to move said J marker to operating position in connection with said stretching device.

9. In a machine of the class described, a table having a vertically reciprocating marker mounted thereon, a band holding device adjustable with respect to the line of movement of, said marker, a device for stretching a band prior to its engagement by said marker, and means for moving the marker to operative position.

HARRY G. BAKER. 

